Movement of water through the soil surface into the ground.
The seepage or filtration of a liquid through a porous substance.
the filtration of a liquid for extraction or purification
the act of making coffee in a percolator
the slow passage of a liquid through a filtering medium; "the percolation of rainwater through the soil"; "the infiltration of seawater through the lava"
the slow passage of a liquid through a filtering medium
